Model Iskra Lawrence hit the beach in a sexy black bikini in Tulum, Mexico, this week. The 27-year-old English stunner [1] put her curves on display while taking a dip in the ocean and hanging in the water with friends. Iskra, who is the global role model for Aerie, left Mexico for Miami on Friday for a store event with the brand and shared a saucy snap on Instagram [2] while showing off one of its two-pieces. Check out Iskra's beach day now, then scroll through even more of her best bikini moments [3].